Barber Lake facility completion
Company: Cipher Mining - Project: Barber Lake Facility
What the later record shows
The date slipped · new target March 31, 2027
Shortly before the deadline, the company agreed to change orders and a new phased delivery schedule. Under it, the last data halls are delivered by Q1 2027 rather than September 2026.
“agreed to certain tenant-modification change orders to modify the design of the Barber Lake Facility as well as to an updated phased delivery schedule for the Barber Lake Facility”
2026-09-24 · Cipher Mining 8-K filed 2026-09-25 View cached copy (2026-09-26)Live source ↗
“with individual data halls now expected to be delivered between the fourth quarter of 2026 and the first quarter of 2027”
2026-09-24 · Cipher Mining 8-K filed 2026-09-25 View cached copy (2026-09-26)Live source ↗
Checked October 10, 2026 against filings, releases and reporting published after the claim was made. Quotes are verbatim from the linked documents.
The claim, verbatim
The Company expects to complete development and construction of the Facility and deliver it to Fluidstack by September 2026.
Source (primary)
Cipher Mining 8-K filed 2025-09-25 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗
Quote: “The Company expects to complete the development and construction of the Facility and deliver the Facility to Fluidstack by September 2026.”
How we checked this
Checked on October 11, 2026. The cited source supports every part of this claim.
The 8-K states that the Company expects to complete development and construction of the Facility and deliver it to Fluidstack by September 2026, matching the claim exactly; this is a forward-looking expectation, not a completed event.
Confirmed in the source:
- Cipher Mining expects to complete development and construction of the Barber Lake Facility
- Cipher Mining expects to deliver the Facility to Fluidstack
- The expected completion and delivery date is by September 2026
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1819989/000095010325012168/dp234624_8k.htm) in full (13,259 characters, retrieved August 31, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms Cipher Mining 8-K filed 2025-09-25
Quote: “The Company expects to complete the development and construction of the Facility and deliver the Facility to Fluidstack by September 2026.”
delays Cipher Mining 8-K filed 2026-09-25
Quote: “agreed to certain tenant-modification change orders to modify the design of the Barber Lake Facility as well as to an updated phased delivery schedule for the Barber Lake Facility”